Ontario G1 Knowledge Test — G1 Practice Question
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Accuracy —
Road Signs
A yellow diamond warning sign showing a truck descending a steep slope means:
Show Answer & Explanation
Correct Answer: B. Steep hill ahead — you may need to use a lower gear
A steep-hill warning gives you time to choose a lower gear before descending. Using engine braking (lower gear) reduces reliance on friction brakes, which can overheat and fail on long descents.
Why the other answers are wrong
- A.Truck rest stop aheadRest stops are indicated by blue service signs, not yellow warning diamonds.
- C.Truck lane beginsTruck lanes are regulatory signs with 'TRUCK LANE' text.
- D.Scenic viewpoint aheadScenic-viewpoint markers use brown tourist information signs.